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What's next? Regressive taxes on U.S. citizens evaluated by their benefits for the average world citizen? Let's just charge a head tax in the U.S. to fund a helicopter drop in Africa and Latin America. I'd prefer that to more low skilled immigration. The former at least doesn't shift the marginal voter.

Hopefully the IGM will address low-skilled immigration soon, and evaluate the average effects on humanity as well as the average effects on U.S. citizens.

Short-run or long-run?

Consider the effects of forcibly redistributing all the wealth in the US proportionately to humanity at large until no American has more than the worldwide mean amount of wealth. Clearly in the short run the average effects on humanity would be positive.*

In the long run, though? I would predict a gigantic diminution of economic growth, because economic growth has not been based on population growth since the Industrial Revolution, but on technological progress.

Mass redistribution of capital from makers to takers, to which mass immigration of low-IQ people to advanced countries is analogous, would reduce economic growth for the whole world.

*Neither the total or average wealth in the world would increase, but the average human's personal wealth would increase, even though some people would suffer a diminution of wealth.

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